Extraction Equilibria of Lithium with Tributyl Phosphate, Diisobutyl Ketone, Acetophenone, Methyl Isobutyl Ketone, and 2-Heptanone in Kerosene and FeCl<sub>3</sub>

Zhou, Zhiyong; Liang, Shengke; Qin, Wei; Fei, Weiyang

doi:10.1021/ie303496w

Cited by 53 publications

(20 citation statements)

References 18 publications

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“…Researchers mainly focused on the separation of Li/Mg in the recovery of lithium from salt lake brine . Sodium is another impurity which is highly concentrated in the solutions after precipitation with soda which has aroused people's attention .…”

Section: Resultsmentioning

confidence: 99%

Role of ionic liquids in the efficient transfer of lithium by Cyanex 923 in solvent extraction system

et al. 2019

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The solvent extraction of Li + by Cyanex 923 was investigated upon the addition of different imidazolium-based ionic liquids (ILs). The results showed 1-hydroxylethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([HOEmim][NTf 2 ]) can improve the extraction of Li + most effectively. The fundamental mechanism is that [HOEmim] [NTf 2 ] can remarkably enhance the coordination ability of Cyanex 923 to Li + to form more stable and hydrophobic ion-pair species [Li(Cyanex 923) n ][NTf 2 ] (n max = 3) resulting from the electrostatic interaction and typical hydrogen bonding of IL, and thus facilitating the transfer of Li + into organic phase. This work has revealed the transfer mechanism of Li + in a solvent extraction system comprising of IL and neural ligand. The knowledge of the coordination environment of Li + in the presence of IL also gives us a new insight into the separation of 6 Li/ 7 Li. The disadvantage of this process is the loss of IL. However, this study provides guidance for the design of better IL-based systems for the separation of metal ions. K E Y W O R D S extraction, ionic liquids, lithium, trialkylphosphine oxide 1 | INTRODUCTION Lithium (Li) is a strategic metal. It has a wide variety of applications in the area of nuclear energy, 1 aeronautics and astronautics, lithium batteries, 2 glasses, and ceramics. With the growing market in electronics and new

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Section: Resultsmentioning

confidence: 99%

Role of ionic liquids in the efficient transfer of lithium by Cyanex 923 in solvent extraction system

et al. 2019

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“…Meanwhile, the production of lithium and its compounds for lithium‐ion batteries has attracted more and more attention in the global lithium industry . Salt lake brines are considered as valuable resources having great potential for the development of the lithium industry in the world, and various methods such as chemical precipitation, solvent extraction, and membrane separation have been developed for lithium extraction from brines. Nevertheless, the recovery of lithium from a high Mg/Li ratio brine has been a key technical problem in the world due to the similar chemical properties of Mg 2+ and Li + .…”

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confidence: 99%

New Insights into the Application of Lithium‐Ion Battery Materials: Selective Extraction of Lithium from Brines via a Rocking‐Chair Lithium‐Ion Battery System

Song

et al. 2018

Global Challenges

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Lithium extraction from high Mg/Li ratio brine is a key technical problem in the world. Based on the principle of rocking‐chair lithium‐ion batteries, cathode material LiFePO 4 is applied to extract lithium from brine, and a novel lithium‐ion battery system of LiFePO 4 | NaCl solution | anion‐exchange membrane | brine | FePO 4 is constructed. In this method, Li + is selectively absorbed from the brine by FePO 4 (Li + + e + FePO 4 = LiFePO 4 ); meanwhile, Li + is desorbed from LiFePO 4 (LiFePO 4 − e = Li + + FePO 4 ) and enriched efficiently. To treat a raw brine solution, the Mg/Li ratio decreases from the initial 134.4 in the brine to 1.2 in the obtained anolyte and 83% lithium is extracted. For the treatment of an old brine solution, the Mg/Li ratio decreases from the initial 48.4 in the brine to 0.5 and the concentration of lithium in the anolyte is accumulated about six times (from the initial 0.51 g L −1 in the brine to 3.2 g L −1 in the anolyte), with the absorption capacity of about 25 mg (Li) g (LiFePO 4 ) −1 . Additionally, it displays a great perspective on the application in light of its high selectively, good cycling performance, effective lithium enrichment, environmental friendliness, low cost, and avoidance of poisonous organic reagents and harmful acid or oxidant.

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“…Additionally, MgCl 2 behaved better than NH 4 Cl and CaCl 2 due to the weak competitiveness and strong salt-out effect of MgCl 2 . They further investigated the extraction efficiency of TBP and four ketone polar solvents (diisobutyl ketone, acetophenone, methyl isobutyl ketone, and 2-heptanone) using MgCl 2 as a chloride source and FeCl 3 as a co-extractant [181]. Compared to these four ketones, TBP with a concentration of 60% showed the highest partition coefficients when using kerosene as the diluent.…”

Section: Organophosphorus System Materialsmentioning

confidence: 99%

Materials for lithium recovery from salt lake brine

et al. 2020

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Rapid developments in the electric industry have promoted an increasing demand for lithium resources. Lithium in salt lake brines has emerged as the main source for industrial lithium extraction, owing to its low cost and extensive reserves. The effective separation of Mg 2? and Li ? is critical to achieving high recovery efficiency and purity of the final lithium product. This paper summarizes Mg 2? /Li ? separation materials and methods in the field of lithium recovery from salt lake brines. The review begins with an introduction to the global distribution and demand for lithium resources, followed by a description of the materials used in various separation techniques, including precipitation, adsorption, solvent extraction, nanofiltration membrane, electrodialysis, and electrochemical methods. A comparison, analysis, and outlook of such methods are comprehensively discussed in terms of principles, mechanisms, synthesis/operation, development, and industrial applications. We conclude with a presentation of challenges and insights into the future directions of lithium extraction from salt lake brines. A combination of the advantages of various materials is the most logical step toward developing novel methods for extracting lithium from brines with high separation selectivity, stability, low cost, and environmentally friendly characteristics.

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Extraction Equilibria of Lithium with Tributyl Phosphate, Diisobutyl Ketone, Acetophenone, Methyl Isobutyl Ketone, and 2-Heptanone in Kerosene and FeCl₃

Cited by 53 publications

References 18 publications

Role of ionic liquids in the efficient transfer of lithium by Cyanex 923 in solvent extraction system

Role of ionic liquids in the efficient transfer of lithium by Cyanex 923 in solvent extraction system

New Insights into the Application of Lithium‐Ion Battery Materials: Selective Extraction of Lithium from Brines via a Rocking‐Chair Lithium‐Ion Battery System

Materials for lithium recovery from salt lake brine

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Extraction Equilibria of Lithium with Tributyl Phosphate, Diisobutyl Ketone, Acetophenone, Methyl Isobutyl Ketone, and 2-Heptanone in Kerosene and FeCl3

Cited by 53 publications

References 18 publications

Role of ionic liquids in the efficient transfer of lithium by Cyanex 923 in solvent extraction system

Role of ionic liquids in the efficient transfer of lithium by Cyanex 923 in solvent extraction system

New Insights into the Application of Lithium‐Ion Battery Materials: Selective Extraction of Lithium from Brines via a Rocking‐Chair Lithium‐Ion Battery System

Materials for lithium recovery from salt lake brine

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Extraction Equilibria of Lithium with Tributyl Phosphate, Diisobutyl Ketone, Acetophenone, Methyl Isobutyl Ketone, and 2-Heptanone in Kerosene and FeCl₃